Impact of Labour Productivity Differences on Urban-Rural Integration Development and Its Spatial Effect: Evidence from a Spatial Durbin Model

Table 1

Evaluation index system of urban-rural integration.

Target layer	Criterion layer	Specific index	Index attribute	Weight
DOURI	Urban-rural economic integration	Ratio of urban to rural disposable income	−	0.023
		Per capita retail sales of consumer goods	+	0.115
		The proportion of the GDP of the tertiary industry in the overall GDP	+	0.074
		Ratio of urban to rural Engel’s coefficient	+	0.023
		Per capita GDP	+	0.110
	Urban-rural life integration	Per capita living space	+	0.053
		Ratio of urban to rural per capita expenditure on cultural, educational, and recreational supplies and services	+	0.025
		Per capita number of medical beds	+	0.070
	Urban-rural production integration	Per capita investment in social fixed assets	+	0.077
		The proportion of science and technology expenditure in the total financial expenditure	+	0.192
		Level of agricultural mechanization	+	0.101
	Urban-rural ecological integration	The proportion of environmental protection expenditure in the total financial expenditure	+	0.034
		Amount of agricultural chemical fertilizer applied per 10,000 yuan of GDP	−	0.029
		Amount of pesticide applied per 10,000 yuan of GDP	−	0.020
		Coverage of sanitary toilets in rural areas	+	0.040
		Centralized sewage treatment rate	+	0.016